English dictionary, thesaurus, translations & etymology
FreeDict.com

"O" Slang

Slang words starting with "o" — clear definitions, real examples and origins. Updated as new slang appears, and free to browse with no sign-up.

"O" Terms

ọ chara acha
Street
A compliment on beauty or fine appearance, literally comparing someone to a perfectly ripened fruit.
o sign to q sign
General
Shorthand for a deteriorating trajectory: a patient progressing from the O sign (mouth open) to the Q sign (tongue lolling) and onward to death.
o-dark-thirty
General
Any ungodly hour between midnight and dawn when you're being made to do something. Deliberately vague — could be 0300, could be 0445. The point is it's dark, you're tired, and someone with stripes wants you upright.
o-sign
General
Bedside shorthand for a patient who's deeply out of it — flat on their back, jaw slack, mouth hanging open in a perfect O. It's the look that tells the on-call team this one's circling the drain. Pair it with the Q-sign (tongue lolls out the side) and the prognosis gets worse. Dark humour, but every hospital in the English-speaking world uses it.
o'block
Street
A stretch of Parkway Gardens on Chicago's South Side — one of the most documented blocks in rap history. Home turf for Lil Durk and the late King Von, who turned it into the backdrop for half a decade of drill music. The 'O' is for Odee.
oaktown
Street
Oakland, CA. The nickname stuck thanks to Bay Area rap and the late-80s group Oaktown's 3.5.7, and it's been the city's hip-hop alias ever since — used by everyone from Too $hort to Keak da Sneak.
obeah
General
A system of African-derived folk magic, spells and healing practised in Jamaica.
obi akpọ
Street
Used to describe cruelty or callousness, and (as 'onye obi akpọ') to label a person as wicked or heartless.
observer ward
Gaming
A placeable Dota ward that grants flying vision over a big radius for a few minutes. It doesn't reveal invis — it just lets you see what's happening so you don't get jumped.
obtunded
General
A clinical description of a patient whose consciousness and responsiveness are blunted, more depressed than lethargic but not fully comatose.
obv
Internet
An abbreviation of "obviously," used to mark something as clear or self-evident.
obzocky
General
Describing something clumsy-looking, ungainly or unattractive, usually in a derogatory way. Also spelt obzokie.
oc
Internet
Short for 'original character'; a cosplay or design of a character invented by the cosplayer rather than drawn from a franchise.
occabot
General
Tobacco. From 'tobacco' reversed and reshaped to 'occabot', a back-slang term for the leaf, whether for a pipe, a roll-up, or stock to be sold or bartered.
och
General
A versatile exclamation expressing surprise, dismissal, sympathy or emphasis.
ochro
General
The vegetable okra, used in soups and stews across the Caribbean.
ock
General
An address term for the man working behind a bodega counter, often of Middle Eastern or South Asian descent; can be used familiarly or dismissively.
ocker
General
The archetypal unrefined, boorish Australian bloke; also the associated broad accent and manner.
oconus
General
Any duty location outside the U.S. mainland, such as overseas or in Alaska and Hawaii.
od
General
To an extreme degree; over the top. Can describe doing too much ('you're doing OD') or serve as an intensifier ('OD people').
odagiri effect
Internet
The phenomenon where a series aimed at one demographic attracts a big female following because of its attractive male characters, named after actor Joe Odagiri.
odeshi
Street
Describes a person (or thing) believed to be impervious to harm — bullets, blades, misfortune. It began as the name of a real charm/ritual practice and became a badge of fearlessness after Anambra's Bakassi Boys vigilantes were said to walk through gunfire unharmed while shouting the word.
odogwu
Street
A traditional Igbo honorific originally bestowed on a distinguished warrior or community leader, meaning roughly 'great man' or 'champion.' In modern street and pop-culture slang it's used more loosely to hype a man who is successful, influential, physically impressive, or generally 'the boss.'
oe
General
The 'Overseas Experience' rite of passage where young New Zealanders travel and work abroad, often in the UK, for an extended period.
ofc
Internet
A reassuring 'no problem at all' in response to thanks or a request.
off line
General
A cook announcing they're leaving their station for a minute — bathroom, walk-in run, smoke, whatever. It's a courtesy and a safety thing: the rest of the line knows to watch their pans, catch their tickets, and not let anything burn. Always answered with an audible "heard."
off the chain
Pop
Describes something so good or exciting it's basically uncontrollable, like an animal that broke loose from its chain.
off the hook
Music
Out of control in a great way, beyond expectations.
off the lip
General
A vertical maneuver in which the board hits the breaking lip of the wave and then drops back down the face.
off-angle
Gaming
Instead of sitting where everyone checks, you post up somewhere weird, deeper, wider, tucked off to the side. The enemy clears the common spot, relaxes, and you catch them.
off-tank
Gaming
In a two-tank setup, the off-tank is the aggressive one. Their kit isn't about protecting allies, it's about disrupting, diving and bursting the enemy.
offboarding
General
The formal process of separating a departing employee from an organization, covering knowledge transfer, exit interviews, revoking access, and returning equipment.
office siren
Pop
Used adjectivally for anything channeling that Y2K corporate-femme-fatale look.
offie
General
The off-licence — a shop licensed to sell alcohol for drinking elsewhere. Widely used across the UK, not exclusively Scouse, but a daily fixture of Liverpool vocabulary. The pre-party pit stop.
offlaner
Gaming
Position 3. You play the rough lane, usually outnumbered, scrapping for XP off a tense creep equilibrium. Tough, durable heroes who can survive being bullied and still come online as a tanky initiator.
offshore
General
Wind blowing from the land out toward the ocean, which holds waves up and grooms clean, hollow faces. Considered ideal for surfing.
offside trap
General
A coordinated defensive move where the back line pushes up in unison as the ball is played, leaving forwards offside.
offsite
General
A planning or bonding meeting deliberately held somewhere other than the workplace.
ofwgkta
Street
The full-length name and acronym of Odd Future, the LA crew Tyler, the Creator built out of skate park energy and a Tumblr-era internet. Shorthand for an entire late-2000s / early-2010s aesthetic: cat hats, donut logos, Golf Wang, deliberate chaos. Most members are now bigger solo than the crew ever was.
og
Internet
A respected veteran of a server, scene, or fandom. Was there for the founding drama, knows where the bodies are buried, gets nodded to in #general. Worn as a badge.
oga
Street
Used to address or refer to a boss, employer, or any male figure of authority or respect.
ogbanje
Street
In Igbo cosmology, an ọgbanje is a spirit-child believed to die young and be reborn to the same mother repeatedly, tormenting the family — a serious, real spiritual belief (explored in literature such as Akwaeke Emezi's 'Freshwater'). In casual modern slang, the word gets stretched loosely to describe someone unpredictable, dramatic, or hard to control, without the original spiritual weight.
ogle
General
Compounds describe the whole eye area: 'ogle riahs' or 'ogle fakes' were the eyelashes, and 'ogle filters' could mean glasses or sunglasses.
oh for cute
General
An expression of delight at something cute, following the Minnesota 'oh for ___' pattern.
oh gorm
General
A softened swear used to express shock or frustration, from 'oh God'. Also 'oh gawd', 'oh gosh'.
oh my days
Street
An exclamation expressing shock, disbelief, or exasperation.
ohio
Internet
A meme descriptor for anything strange, cursed, or absurd, treating Ohio as a place where bizarre things happen.
oi
General
A call to attract someone's attention or to protest; famous in the 'Aussie Aussie Aussie, Oi Oi Oi' chant.